What am I doing wrong ?

I wrote a little something to create flanges with just a few questions. The
code is simple enough, but the holes on the bolt circle are always arrayed
from a center point which is a hole radius away from the diameter center.
Confused ? Good. Here's the code, try it out. It's french, but most of you
shouldn't have a problem with that.
And yes, Bride means flange.
Dr Fleau
;;; Bride.lsp
;;; Dessine une bride avec quelques questions
;;; Trace les centres des cercles avant de faire un array
(DEFUN c:bride (/ out in bc num trou cen cen1 cir1 cir2 cir3)
(SETQ out (GETREAL "Donne le diamètre EXTÉRIEUR : ")
in (GETREAL "Donne le diamètre INTÉRIEUR :")
bc (GETREAL "Donne le diamètre de perçage : ")
num (GETINT "Combien de trous : ")
trou (GETREAL "Quel diamètre de trou : ")
cen (GETPOINT "Point d'insertion : ")
) ;_ end of setq
(IF (NOT (AND (TBLSEARCH "layer" "Axe")
(TBLSEARCH "layer" "Pièce")
) ;_ END and
) ;_ END not
(COMMAND "layer" "m" "Axe" "c" "Red" "" "l" "center" "" "") ;_ END
(COMMAND "layer" "m" "Pièce" "c" "Magenta" "" "l" "continuous" "" "")
) ;_ END progn
(setvar "CLAYER" "Pièce")
(COMMAND "_.circle" cen "D" out)
(COMMAND "_.circle" cen "D" in)
(SETQ cen1 (POLAR cen (/ PI 2) (/ bc 2)))
(COMMAND "_.circle" cen1 "D" trou)
(setq cir1 (entlast))
(setvar "CLAYER" "AXE")
(command "_.line" (polar cen1 (/ pi 2) (/ trou 2)) (polar cen1 (/ pi -2)
(/ trou 2)) "")
(setq cir2 (entlast))
(command "_.line" (polar cen1 pi (/ trou 2)) (polar cen1 0.0 (/ trou 2))
(setq cir3 (entlast))
(setvar "OSMODE" 0)
(command "_.regen")
(COMMAND "_.array" cir1 cir2 cir3 "" "P" cen num 360 "N")
(setvar "CLAYER" "Pièce")
) ;_ end of defun
Reply to
Dr Fleau
Loading thread data ...
I posted the following reply a few days ago in the cadforum.ne customization forum
The problem is with how the "array" command works.
Hint: if the objects ARE rotated during an array, the array will b
concentric with other circles
Reply to
-->I posted the following reply a few days ago in the cadforum.net -->customization forum:
Reply to
Dr Fleau
Tried it, works fine. I would've liked to keep the center lines vertical, but hey...
Thanx again.
"Dr Fleau" a écrit dans le message de news: snipped-for-privacy@4ax.com...
Reply to
Dr Fleau
You're welcome. Maybe you didn't see my other post as I access th site through web browser not news reader
If you want vertical lines, you could make your own array function i
the routine, which copies the initial bolt hole as needed in a pola fashion
Reply to
Forgive me if I'm off topic - I looked for CarlB's routine on the customization forum, but for some reason I'm not finding it. Still I am following what you're doing - my comment is :
Standard practice for rotated flange holes is not to have vertical centerlines. They should rotate as well.
This issue is debated in Mechanical Desktop groups as well, as MDTseems to want to retain vertical centerlines, which drives traditional drawing checkers batty.
G Faris
Reply to
Greg Farris
"Greg Farris" a écrit dans le message de news:dkv6jg$27f3$ snipped-for-privacy@biggoron.nerim.net...
I don't really care if the lines are rotated or not. My routine was simply to create a punching pattern for the guys in the shop in less time than it would take to do all the steps manually. I just think that, visually, the centerlines are easier to work with, i.e. they jump out more. This being said, thank you for all your replies and I'll add this group is top notch for occasionnal lispers like myself.
Reply to
Dr Fleau

PolyTech Forum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.